Dr. Hadley Cantril discusses his investigations at the Perception Demonstration Center at Princeton University of the effects of some of our assumptions on what we see. Shows a distorted room that looks normal, with illustrations that include a rotating trapezoid that appears to oscillate, balloons that seem to move when in reality they are being inflated and deflated, or illuminated and darkened. Search Educational Film Journals at Media History Project for references to this film... Topics: Visual Perception, Perception
byRudall, James T; University College, London. Library Services; University College, London. Library Services
This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London) Topics: Ophthalmology, Visual perception, Vision, Visual Perception, Vision, Ocular, Vision, Ocular
Molecular nanotechnology is the precise, three-dimensional control of materials and devices at the atomic scale. An important part of nanotechnology is the design of molecules for specific purposes. This paper describes early results using genetic software techniques to automatically design molecules under the control of a fitness function. The fitness function must be capable of determining which of two arbitrary molecules is better for a specific task. The software begins by generating a... Topics: INFORMATION SYSTEMS, VISUAL PERCEPTION, SEGMENTS, ALGORITHMS, CLUSTER ANALYSIS, HIERARCHIES
byLau, Benton H.; Wadcock, Alan J.; Heineck, James T
The objectives of this program were to measure the tip-vortex trajectory of a full-scale, hovering tiltrotor and to compare the vortex trajectory of the baseline rotor with that of the subwing rotor (first figure). The subwing, which is mounted at the blade tip, can split the strong concentrated tip vortex into two weaker vortices, and weakening the vortex can reduce the blade-vortex interaction noise. TWO sets of subwings with different incidence angles were tested in this program. Topics: EYE MOVEMENTS, IMAGE PROCESSING, COMPUTER PROGRAMS, MICROCOMPUTERS, VISUAL PERCEPTION
byLiebreich, Richard.; Liebreich, Richard; College of Preceptors (London, England); Society for the Development of the Science of Education; University College, London. Library Services
1. School life in its influence on sight : a lecture delivered before the College of Preceptors at the house of the Society of Arts, July 13, 1872 -- 2. School life in its influence on figure, and especially on the spine : a lecture delivered before the Society for the Development of the Science of Education, June 5, 1878 Topics: Visual perception, Ophthalmology, Eye, Spine, Ophthalmology, Eye, Spine
This study evaluates the relationships that exist between three types of visual and perceptual-motor tasks (coincidence-anticipation, tracking with rotary pursuit, and a unique two-dimensional discrete motor task) and investigates the nature of learning demonstrated by the subjects on each of the three tasks. Thirty male students were given 20 trials on each of the tasks. A correlation matrix of task variables was computed and learning curves plotted. Results indicated that an individual's... Topics: ERIC Archive, Learning, Perceptual Motor Learning, Task Performance, Visual Perception
GRADES OR AGES: Grades 7-9. SUBJECT MATTER: Physical Health, Sensory Perception. ORGANIZATION AND PHYSICAL APPEARANCE: The format consists of four columns: a basic context guide for teachers, a listing of major understandings and fundamental concepts which children can achieve, resource materials for classroom teachers, and supplementary information. OBJECTIVES AND ACTIVITIES: The program aims at educating pupils about sensory perception in order that they may better care for their senses and... Topics: ERIC Archive, Curriculum Guides, Educational Media, Health Education, Junior High School Students,...
At some time during every fixation a decision is made to move the eyes, directing them to a new location in the stimulus array. To understand the eye movement control processes, three general hypotheses concerning the cognitive basis for deciding to move the eyes were investigated: the saccade (movement) initiation time is determined only on the basis of information obtained prior to the current fixation; the saccade initiation occurs only after all processing of the presently viewed... Topics: ERIC Archive, Cognitive Processes, Eye Fixations, Eye Movements, Language Processing, Visual...
Ten test films were developed to measure aspects of children's visual perception which are difficult to assess through conventional paper and pencil tests. The film medium was selected because it allows the presentation of temporal, as well as spacial, aspects of the stimuli. Four areas of perceptual performance covered in the films are: (1) visual memory span, dealing with the quantity of visual material which the child can absorb and retain over a period of time; (2) the child's use of a... Topics: ERIC Archive, Children, Films, Learning, Nonverbal Tests, Test Construction, Visual Measures,...